(Claparède and Lachmann, 1858)
Diagnosis: Cylindrical bowl, rounded terminally. Entire oral end. Aboral horn very stout, with conspicuous pleats. Sometimes with spiralled epilorica.
Ref.: Brandt (1906-1907), Jörgensen (1924), Balech (1959), Laval-Peuto (1981).
¥ forma coxliella Laval-Peuto, 1981
Spiralled, hyaline lorica with spiral turns variable in size and number.
Ref.: Laval-Peuto (1981).
¥ forma decipiens Jörgensen, 1924
Ref.: Laval-Peuto (1981).
¥Êforma favella Laval-Peuto, 1981
Ref.: Brandt (1906-1907), Jörgensen (1924), Balech (1959).